Bac Ha is a rural district of Lao Cai province in the Northeastern region of Vietnam. It is the capital of the region of the Flower h’mong, one of the 54 minorities of Vietnam and of the 6 groups of h’mong people.
It is famous for its Sunday morning market, where thousands of locals gathered, the women dressed in their very intricate hand-made costumes (it takes 3 to 5 months to embroider one by hand), as well as for the Saturday morning smaller market of Can Cau, 18 km north of Bac Ha.

The town is enjoying an economic boom thanks to tourism, centered around the markets and, more and more, excellent trekking in the mountains north of the town.

Bac Ha is the location holding the famous contest on adventure sport “Raid Gauloises” in 2002. Bac Ha is famous for its Tam Hoa plum which must bloom three times before they are ripe. As of 2003, the district had a population of 48,988 . The district covers an area of 680 km². The district capital lies at Bac Ha.